upgrade is back

[Greg]

Strange post by @RebelMan here. I started with a D-Premier and have a 250 Pro CI today. I only upgraded for improvement in sound quality and I am not "...left wanting or sorely disappointed". On the contrary. And calling the change "infinitesimal benefits to sound quality" is just plain nonsense and a discredit to the developers at Devialet. Of course they aim for better sound quality - and we benefit.

Not strange at all but perhaps unexpected?  Serendipitously, there have been incremental (sound quality) improvements with each generation but that's just it, incremental.  

In response to the question posed... "What does another three grand buy in terms of sound quality?" the honest answer is not much, virtually nothing if the rest of the "system" is not up to par.  Whether you have deep pockets or not the (prudent) course of action should be to get the "best bang for the buck" or put another way the best performance for the investment made.  That's just not going to happen by upgrading the 120 to any model, unless the room and supporting equipment (aka "system") have already been attended too.

Steering the reader to make a hefty investment upgrading the 120 for potentially little or no gain in sound quality will only lead them to disappointment, if not right away then over time.  On the other hand, taking that same investment to improve the behavior of the room and/or by stepping up the speakers will pay far greater dividends.  However, if you found the move from the D-Premier to the 250 Pro CI for sound quality worth while then perhaps what you are really saying is the D-Premier was the weak link in the chain.  So from your logic it's okay to discredit those developers.

Your point about partnering equipment and room set up is well made. If the OP has already addressed these issues then I would expect a significant improvement in sound quality to be experienced. I have well fettled source kit and good speakers. My room provides a balanced listening environment. When I upgraded to 220 Pro from 120, there was a big step up in sound quality as there was again when I later moved onto a 250 Pro C/I. Nothing else changed in my system or listening room. When I moved to the 250 Pro, @JonnySix bought my 220 Pro C/I from me. He reported a nice improvement to sound quality over his 120. In general, I would expect the OP to gain sound improvement if the upgrade is pursued.